Researchers at Vanderbilt University wanted to see if electrospinning using a cotton candy machine would work as well as the traditional processes. After fiddling with the contents and concentration of the polymer solution, the researchers figured out that they could sprinkle in the human cells and an enzyme called transglutaminase--colloquially called “meat glue” in the food industry--to make the gel coalesce. The resulting material looks a lot like cotton candy, as you might imagine, but it’s a mass of living cells connected by fibers about the same size as a human capillary. Once the mass had cooled, the researchers pumped it full of oxygen and other nutrients the cells needed to survive. After a week, 90 percent of the cells were still alive, compared to the typical 60-70 percent in solid synthetic tissue that doesn’t have the fibers.